Engine Controller Board Removal | Epson N2700 manual

EPSON EPL-N2700

Rev. A

4.2.14 Engine Controller Board Removal

1.Remove the Rear Cover. (See Section 4.2.6.)

2.Remove the Top Cover. (See Section 4.2.11.)

3.Remove the following screws and remove the Shield Cover.

Sixteen screws (3501: marked with A in the figure) securing the

Shield Cover to the printer frame.

Three screws (1305: marked with B in the figure) securing the

Shield Cover to the Interface bracket.

4. Remove twelve screws (1305: marked with C in the figure) securing the Main Circuit Board to the Main Circuit Board Mounting Plate.

5. Disconnect the control panel harness connecting to the Main Circuit Board from the CN3.

6. Remove seven screws (1305) securing the Interface bracket to the printer frame, and remove the Interface bracket along with the Main Circuit Board by moving it upward.

7. Remove one screw securing the shield cable for the control panel harness to the Main Circuit Board Mounting Plate, and remove the shield cable.

8. Remove twelve screws (1305) securing the Main Circuit Board Mounting Plate to the P/H Plate.

9. Disconnect harnesses from the Engine Controller Board.

Figure 4-25. Engine Controller Board Removal

Chapter 4 Disassembly/Assembly

105

Image 105

Epson N2700 manual Engine Controller Board Removal

Contents

Epson EPL-N2700 Page Precautions Safety Information Laser Beam Preface Revision Issued Date Description Contents Troubleshooting Appendix Product Description Engine Features Controller FeaturesSoftware CPU Controller SpecificationsRAM ROM Installation Format ConfigurationOther Feature Interfaces Engine Specifications Paper Supply / Paper Size / Capacity Paper Sources and their Paper Availability Paper Specifications Supported Paper Sizes Consumables and OptionsPaper Feed Alignment Paper Ejection Consumption Power Supply SpecificationNoise Ozone Density Paper Type Process Specifications Paper Path Availability Paper Path AvailabilityPrintable Area Special Paper Standard Normal Reliability, Durability, And Maintainability Durability SkewMaintainability Ejection Curl 13. Environmental Conditions Main Unit Temperature and Humidity Vibration ToleranceAIR Pressure Drop Tolerance Electrical Specifications Safety Approval Consumable Item SpecificationsEnvironmental Condition for Storage and Transportation Drop Test Host Interface Usage Configurations 19. Host Interface Usage ConfigurationsParallel I/F Serial I/F Ethernet I/F Type B I/F Serial Interface Parallel Interface 20. Ethernet I\F Pin Assignment Ethernet I/F Type-B I/F 21. Emulations AvailableEmulation Emulation Type Entity Type Control Panel LED IndicatorsLCD Panel Buttons This printer has a non-volatile memory Eeprom to Setting Items Panel SettingsSelecType Option 1/7 SelecType Option 2/7 25. SelecType Option 4/7 24. SelecType Option 3/7 27. SelecType Option 6/7 26. SelecType Option 5/7 SelecType Option 7/7 Maintenance Menu *24 Setting Item Setting value Default Value Setting method Setting Item DescriptionMP Tray Size MP Type Output Tray Selection Specifications Multibin Settings and Corresponding Outbins AvailableLC1 to LC3 Type Paper Source Quantity Printing Menu Items of restriction on the paper trayDuplex Printing Menu Items of restriction on the duplex printing 31. One-Touch Setting Functions One-Touch SettingSpecial Functions 32. Special Functions Available Eeprom Initialization Hex-Dump ModeUpdating the Program ROM Copying the ROM Module Mode Maintenance Mode Sample Engine Status Sheet Engine Status Sheet EPL-N2700 Revision a LC1 Data name Storage location Count condition Clear condition 34. Exterior View of the Printer Main Body Weight Operating Principles Printer Mechanism Operating Principles Optional cassettes When the optional duplex unit are installed Gear/Roller Location Gear/Roller Location Electrical Component Layout Electrical Component Layout Switches and Sensors Switches and SensorsLocation Name Function MP Tray Paper Feeding Section MP Cassette Set Sensor Mechanism Timing Roller Sensor Mechanism Paper Size Detection Mechanism Cassette Cassette 12. Cassette 1 Paper Feeding Mechanism Separators Actuators Paper Size Paper Size and Corresponding Actuator Condition 14. Cassette 1 Paper Empty Sensor Mechanism 16. Cassette 1 Right Door Detecting Sensor 17. Registration Compensation Paper Feed 19. Printhead Unit Mechanism Printhead Unit Exposure Section 20. Print Process Sequence Print Process Sequence Part Names and Functions of the Imaging Cartridge Imaging Cartridge Development Section Charging Section 24. Toner Image Production 25. Transfer Section Mechanism Transfer Section 26. Fusing Section Fusing Section 28. Fuser Temperature Control 29. Paper Exit Sensor Mechanism Paper Exit Section Detection whether New or Used Imaging Cartridge Right Door Interlock Switch Drive Section System Layout 33. System Layout Electrical Section Electrical Section Main Component in the Main Circuit Board Main Circuit Video ControllerMain Components in the Main Circuit Board Name Location Functions Troubleshooting Message List Printer MessagesPrinter Message Message Type Yyy Message Descriptions Engine Related Error Service-call ErrorEngine Related Error List Error Code Description Controller Related Error List Controller Related Error ListError Code ffff Description Clearing the Service-call Error TroubleshootingTroubleshooting The Printer will not Start Adding on RAM Troubleshooting The Printer will not Print Image Quality ProblemsTroubleshooting Image Quality Problem Printer will no Print DISASSEMBLY/ASSEMBLY Unplug the power code from the AC socket PrecautionTools Tool List Small Parts Small Part ClassificationReference No Size Name Appearance Binding head B-tite Screw Disassembly Procedure ROM Dimm Removal ROM Dimm Replacement Paper Eject Sensor Removal Paper Eject Sensor Removal Taking out the MP Cassette MP Cassette Paper Take-up Roller Removal Transfer Section Transfer Roller RemovalNever touch the transfer roller surface with your bare Timing Roller Front Sensor Removal Transfer Unit Removal 13. Timing Clutch Removal Timing Clutch Removal 14. Timing Roller Removal Timing Roller Removal Separating the Printer Internal Cooling Fan RemovalOutward Transport Motor Removal Rear Cover Removal MP Cassette Size Sensor Removal 8 I/C Drive Motor Removal Top Cover Removal Paper Size Sensor Removal 23. Toner Empty Sensor Removal Toner Empty Sensor Removal 24. Main Circuit Board Removal Main Circuit Board Removal 25. Engine Controller Board Removal Engine Controller Board Removal Disassembly/Assembly 106 With its exhausting side facing outside Power Supply Unit Cooling Fan Removal 29. High Voltage Unit Removal High Voltage Unit Removal Control Panel Removal Front Cover Removal 32. Lever / Left Cover Removal Printhead Unit Removal Disassembly/Assembly 111 34. Harnesses to be Removed Power Supply Unit Removal Fuser Unit Removal Fusing Section 38. Fuser Heater Lamp Front Cover Removal Heater Lamp Replacement Disassembly/Assembly 115 Disassembly/Assembly 116 Disassembly/Assembly 117 48. Fuser Lamp Termistor Removal Upper Paper Separator Finger Removal Upper Paper Eject Roller Removal Lower Paper Separator Finger Removal 53. Lower Paper Eject Roller Removal Lower Paper Eject Roller Removal 54. Fuser Unit Reinforce Plate Removal Drive Unit Removal Disassembly/Assembly 122 MP Cassette Paper Take-up Solenoid SL1 Removal MP Cassette Set Sensor RemovalMP Cassette Paper Empty Sensor Removal 60. MP Cassette Paper Near Empty Sensor Removal MP Cassette Paper Near Empty Sensor Removal Cassette 1 Disassembly Paper Take-up Roller RemovalRoller is securely locked as shown below Cassette 1 Paper Near Empty Sensor Removal Cassette 1 Paper Empty Sensor Removal Cassette 1 Control Board PWB-A Removal Paper Size Paper Size Switch Sensor Removal 65. Cassette 1 Paper Take-up Solenoid Removal Cassette 1 Paper Take-up Solenoid Removal Cassette 1 Right Door Set Sensor Removal To cancel the updating at this point, press the Menu Error Indications and MeasuresUpdating the Firmware Updating the Program ROM Disassembly/Assembly 131 Copying the Dimm Module Adjustment Adjustment 134 Maintenance Replacement of Consumable Items Maintenance by UsersUser-performable Maintenance List Replacement of Consumable Item Maintenance by Servicers Maintenance by ServicersAfter replacing the Fusing Unit, perform Fuser Replaced item Replacement cycle Appendix Connector Summary Engine Controller Board PWB-A Connector Summary C269MAIN Circuit Board PWB-P Connector Summary Low Voltage Unit Connector Summary High Voltage UnitConnector Number Constituent to which Other end Pins Connector is connected Harness is connected Component Layout Housing Parts List HousingRef. No Part Name Appendix Exploded Diagrams 143 Frames Parts List Frames Appendix Exploded Diagrams 145 Fussing Section a Parts List Fusing Section a Appendix Exploded Diagrams 147 Parts List Fusing Section B Fusing Section B Appendix Exploded Diagrams 149 Transport Section a Parts List Transport Section a Appendix Exploded Diagrams 151 Transport Section B 10. Parts List Transport Section B Appendix Exploded Diagrams 153 Electrical Components 11. Parts List Electric Components Appendix Exploded Diagrams 155 Paper Take-up Section 12. Parts List Paper Take-up Section Appendix Exploded Diagrams 157 Drive Section 13. Parts List Drive Section Appendix Exploded Diagrams 159 Paper Tray Unit 14. Parts List Paper Tray Unit Appendix Exploded Diagrams 161 Circuit Diagrams Page